The intention with this thesis is to improve the method to assess dental wear as an age indicator by examining its correlation with the closure of cranial suture and the influence diet has on dental wear. This thesis explores this correlation through a comparative study between a collection of skulls with unknown context and a control group with known context. Age assessment of cranial sutures is one of the oldest and most questionable methods of physical anthropology. The studies that were carried out in the beginning of the 21st century have shown a useful correlation between the cranial sutures closure and age assessment. Research on food is essential for understanding a society, and dental health has always been important for wellbeing. A difference between populations today and historical populations is the dental wear that causes infections. All these premises make this research interesting to explore further, to learn more about what the teeth can tell us about historic populations.